I looked online but couldn't find a simple illustration of the engine with lined labels or something similar.
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1990 Audi 100
Question: where is the maintenance port for the a/c recharge?
Answer #1ziptie12 November 17, 2012, 20:03Master
One is on the low pressure side line the other is on the high pressure side line. Check by condensor, might be hidden by grille.
Replydan777, November 18, 2012, 18:14Rookie
Ok, thanks ziptie12. Ill take another look.
Answer #2your.mechanic November 17, 2012, 21:46Master
follow the a/c lines, you should find a schrader type valve or a quick disconnect valve...
Replydan777, November 18, 2012, 18:15Rookie
Thanks. I'll check it out again tomorrow.